Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

E46 (1999 - 2006) The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

About 10 minutes ago i was just driving minding my own business and suddenly the dsc and yellow brake light along with a beep came on. I havent searched for any clues of the cause since im pretty busy right now. I recently put in new control arms with bushings which made my alignment off a bit. Could the alignment be the cause or maybe wheel speed sensors/dsc failure/abs? Any help would be much appreciated. Thanks in advanced!

About 10 minutes ago i was just driving minding my own business and suddenly the dsc and yellow brake light along with a beep came on. I havent searched for any clues of the cause since im pretty busy right now. I recently put in new control arms with bushings which made my alignment off a bit. Could the alignment be the cause or maybe wheel speed sensors/dsc failure/abs? Any help would be much appreciated. Thanks in advanced!

Your car COULD be out of alignment enough to cause the DSC to activate, it isn't unheard of after a change like yours. It could also be the wheel speed sensor. You really need someone with the proper scanner that can tell you which one is bad, IF they are bad.

__________________

Check out my YouTube Channel for DIY's and other fun stuff HERECheck out my BMWBLOG!

Ive just got back from doing my alignment with a buddy at work so now my steering is dead-on straight. Now the dsc and yellow brake light are still on. I've only drove about 1 mile with the lights still on. I'm not sure if I have to keep driving so the computer can learn that the alignment is correct or do I have to get the lights reset at the dealer. (if the alignment was the reason the lights came on) anyone know?

Ive just got back from doing my alignment with a buddy at work so now my steering is dead-on straight. Now the dsc and yellow brake light are still on. I've only drove about 1 mile with the lights still on. I'm not sure if I have to keep driving so the computer can learn that the alignment is correct or do I have to get the lights reset at the dealer. (if the alignment was the reason the lights came on) anyone know?

*As was already mentioned*, there`s a good chance it could be a wheel-speed sensor....especially considering your location, where they sand & salt the roads several months out of the year. Sometimes they just get dirty/corroded, and a good cleaning will get them back in proper working order (if you`re lucky).

__________________

The road goes ever onward....
(R.I.P. Jever)

*Please support the Disabled American Veterans*

When faced with choosing between two evils, always go with the one you`ve never tried before....

I have a dumb question about these lights. Are these lights that need to be reset or do they just go off when everything is correct? I have seen posting that say both things. Will a computer tell you if a wheel sensor is bad? I used the peak and it didn't give me any codes at all?

My car did this after it sat for 6 days without being driven... and was on a 6 year old battery... had battery replaced and never happened again... car has sat for 10 days without driving and no errors given.

Did any of your guy's batteries still show 'Green' on the indicator yet it was still bad? Or was the indicator 'Yellow' and thats how you knew it was bad? Reason im asking is im pretty sure my battery is old yet it still shows the 'Green' indicator and I'm have this same problem.

My BRAKE and DSC lights have come on and been on since about December last year. I really need to refresh my control arms and bushings. I plan on doing that and having an alignment done. If that doesn't help things then i know for sure ill have to start testing the module for bad sensors or look into my battery (even though it still has the green indicator).

Hopefully, it will be helpful to someone. Like Cotwell, it was alignment for me too. After I replaced the Control Arms and Bushings, both the DSC and Brake yellow lights came on. Did the four wheels alignment and drove for 15 to 20 miles. The next time I started the car, both DSC and Brake yellow lights were off.